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Table 2 Overview of intervention programme theory (N = 13 interventions)

From: Interventions targeting the mental health and wellbeing of care-experienced children and young people in higher-income countries: Evidence map and systematic review

Socio-ecological domain of theory

Intervention

Description of theory

Specified theories

Intrapersonal

Equine-facilitated Psychotherapy [50]

Physical and mental development: Horse’s rhythm and riding linked with the mental and physical developmental process

None

Interpersonal

Therapeutic alliance: Relationship with horse provides healing experience. Important for building trust with ‘other’ and establishing interpersonal skills

Therapeutic alliance

Intrapersonal

Fostering Healthy Futures [64,65,66, 69, 70]

Positive Youth Development: Need to develop prosocial, behavioural and emotional skills

Resilience theory: Promote adaptive functioning to increase resiliency

Attachment; Positive Youth Development; Resilience; Social Learning Theory

Interpersonal

Attachment: Challenging relationship histories can reduce mentoring responsiveness

Positive Youth Development: Need to develop prosocial relationships as a template for future relationships

Resilience theory: Promotes adaptive functioning

Social Learning Theory: Importance of modelling to develop prosocial relationships

Intrapersonal

SuppOrting Looked after children In Decreasing Drugs, and alcohol (SOLID)

[72]

Motivational interviewing: Behavioural and cognitive strategies to support change and remove ambivalence towards substance use

Motivational interviewing

Interpersonal

Social network support: Important in supporting young people to deal with problem behaviours and attain goals

None

Interpersonal

Early Intervention Foster Care (EIFC) [56]

Delayed maturation: Challenges of children due to delayed maturation. Intervention provides optimal environment to facilitate developmental progress

None

Interpersonal

Foster carer training [61]

Behavioural management skills: Parent management training informed by a constructive rather than pathological approach to operant conditioning, which theorises that behaviour can be learned through a system of reward and punishment

Operant conditioning

Interpersonal

Foster parent training [67, 68]

Attachment Theory: Care-experienced young people develop mistrust and insecurity because of absent biological caregiver

Social Learning Theory: Background context theory referenced but not explained

Attachment; Social Learning Theory

Interpersonal

Incredible Years [60]

Social Learning Theory: Requirement to alter negative parenting behaviours (e.g. shouting or physical behaviours) modelled to children

Social Learning Theory

Interpersonal

Mentoring intervention for teenage pregnancy [59]

Attachment: Need for positive and responsive attachments between the child and caregiver (or mentor and mentee)

Social Learning Theory: Behaviours learned through the modelling and observation of others

Attachment; Social Learning Theory

Interpersonal

Pathways Home [54]

Encouragement-based parenting: Need to develop parenting practices based on encouragement

None

Interpersonal

Keeping Foster Carers Trained and Supported (KEEP) [53, 62, 71]

Social Learning Theory: Background context theory referenced but not explained

Social Learning Theory

Organisational/ Community

Generic System Change: Cascading dissemination model to support local system capacity

Interpersonal

Multidimensional Treatment Foster Care (MTFC)

[51,52,53, 58]

Coercion theory: Need to prevent negative and coercive interactions between child and their carer and/or peers

Resilience: Focus on positive, asset-based development

Social Learning Theory/Positive Youth Development: Background context theory referenced but not explained

Trauma-focused cognitive behavioural therapy: Carers need to understand and respond to causes of trauma

Coercion Theory; Resilience; Social Learning Theory; Positive Youth Development; Trauma- focused Cognitive Behavioural Therapy

Organisational/ Community

Generic system change: Rolling cohort model that commences with learning from small-scale implementation and then applied to wider system

None

Interpersonal

Treatment Foster Care (TFC)

[57, 63] / Together Facing the Challenge (TFTC)

[55]

Role enactment: Encourages carer affiliation with role of parent to support adherence with delivery

Trauma-focused Cognitive Behavioural Therapy: Carers need to understand and respond to causes of trauma

Therapeutic alliance: Relationships between the treatment parent and child is therapeutic and the therapeutic relationship provides an environment for positive change

Ecological Context Model: Intervention nested within larger supra-system of influence that impacts effectiveness: foster carer skills and parenting; contact with biological parents; and relationship with peer group

Trauma-focused Cognitive Behavioural Therapy;

Therapeutic Alliance; Ecological Context Model

Organisational/ Community

Ecological Context Model: Intervention nested within larger supra-system: lack of educational resources, integration and continuity; delivery agency structure and professionals; funding and access to social services; and young people’s integration into community

Organisational

Children and Residential Experiences (CARE) [73]

Generic system change: Need to transform organisational ethos and culture to create alignment with attachment / relationship-based approach

Attachment; Ainsworth Maternal Sensitivity